Advanced Design & Discovery Platforms

Built for screening & immune profiling

Peptidomimetics, custom MHC peptide tetramers, and combinatorial peptide synthesis libraries engineered to accelerate discovery and lead optimization.

Peptidomimetics
MHC tetramers
Combinatorial libraries
Lead optimization
Immune profiling

Looking for a hub? Return to Advanced Peptide Synthesis.

Overview

Bio-Synthesis provides advanced design and discovery peptide platforms that support screening, immune profiling, and lead optimization. These services help you explore structure–activity relationships (SAR), stabilize bioactive motifs, and build reagents that enable high-confidence biological readouts.

Why use discovery platforms?
  • SAR efficiency: explore variants to identify key positions and motifs.
  • Rigorous reagents: standardized tools for immune profiling and assays.
  • Faster iteration: focused libraries reduce time to a tractable lead.
Typical applications
  • Lead optimization and motif stabilization (peptidomimetics)
  • Antigen-specific T-cell profiling (MHC tetramers)
  • Library screening (positional scanning, focused libraries)
  • Epitope discovery and validation workflows

Best-fit when you need

Design guidance

Recommendations on formats that match your screen or assay.

Focused exploration

Libraries built for interpretability, not just size.

Reliable deliverables

QC and documentation aligned to downstream workflows.

Quick Specification Table (Services at a Glance)

Use this table to map your discovery program to the right platform. For details, see the service sections below.

Service What it is Key design inputs Common use cases
Peptidomimetics Peptide-inspired scaffolds designed to mimic bioactive motifs with improved stability. Target/mechanism, lead sequence or motif, constraints/modifications, success criteria. Lead optimization, stability improvements, conformation control.
Custom MHC Peptide Tetramers MHC–peptide complexes for antigen-specific T-cell detection and profiling. Epitope sequence, MHC allele/class, label/fluorophore, quantity, QC needs. Immune monitoring, epitope validation, vaccine research.
Combinatorial Peptide Synthesis Library synthesis approaches to explore sequence space for binding or activity. Library format, variable positions, amino acid set, plate/array needs, readout. Screening, SAR mapping, hit discovery and optimization.

Related service pages (internal links)

For full options, pricing drivers, and examples, visit the dedicated pages:

Technical Notes — Information that speeds quoting
Project inputs
  • Discovery goal (screening, immune profiling, lead optimization) and target context.
  • Sequences/motifs (if known) and constraints (positions to vary, forbidden residues, etc.).
  • Desired scale, purity, labeling, and reporting/documentation requirements.
Success criteria
  • Define the primary readout (binding, activity, immune staining, etc.).
  • Specify throughput constraints (number of variants, plates, format).
  • Tell us timeline and re-order expectations for iteration.

Peptidomimetics Services

Peptidomimetics are peptide-inspired designs that replicate key binding motifs while improving stability, protease resistance, or conformational control. They’re often used to stabilize a bioactive geometry that linear peptides do not maintain in solution.

Design option Typical choices
Mimic strategy Motif stabilization, backbone modification, constrained scaffolds (project-dependent).
Starting point Lead peptide, binding epitope, or structure-based motif.
Optimization goal Stability, potency, selectivity, permeability, or assay performance.
Handles/labels Optional labeling or conjugation-ready handles for screening.
Technical Notes — Getting to a workable mimic
Design guidance
  • Share target context and what “success” means (IC50 shift, stability, etc.).
  • If you have structure data, include binding residues and geometry constraints.
  • We can propose a focused set of variants to keep SAR interpretable.
QC options
  • LC–MS confirmation and purity reporting (typical).
  • Optional additional analytics and documentation for screening programs.
  • Re-order support for iterative optimization cycles.

Related: Peptidomimetics service page.

Custom MHC Peptide Tetramers Services

Custom MHC peptide tetramers are reagents used to identify and quantify antigen-specific T cells. Provide your epitope and allele information so we can build a tetramer matched to your immune profiling workflow.

Design option Typical choices
MHC class Class I or Class II (project-dependent).
Allele Specify the allele (e.g., HLA type) and organism context.
Epitope Peptide sequence and any modifications required.
Label Specify fluorophore/label and compatibility with your flow panel.
Technical Notes — Ordering details that prevent delays
Information to include
  • Epitope sequence (and any required modifications).
  • MHC allele/class and species.
  • Label/fluorophore and quantity required.
QC & documentation
  • QC and documentation can be aligned to your workflow needs.
  • Tell us if you have endotoxin or sterility constraints.
  • Provide any flow panel constraints to avoid spectral conflicts.

Related: Custom MHC peptide tetramers service page.

Combinatorial Peptide Synthesis Services

Combinatorial peptide synthesis generates libraries that explore sequence space efficiently. Library design (positional scanning, focused libraries, motif constraints) determines how quickly you can interpret SAR and identify leads.

Design option Typical choices
Library format Focused libraries, positional scanning, alanine scans (project-dependent).
Variable positions Define which residues are fixed vs diversified.
Amino acid set Standard set or curated subset; include any exclusions.
Output format Plate/array needs, pooling strategy, and documentation requirements.
Technical Notes — Library design that stays interpretable
Design guidance
  • Start with a screening strategy: what will you measure, and at what throughput?
  • Focused libraries often outperform huge libraries for decision-making.
  • We can recommend a format that balances coverage and cost.
Deliverables
  • Library material in the requested format + documentation (typical).
  • Identity confirmation aligned to the library strategy.
  • Re-order support for iterative rounds of optimization.

Related: Combinatorial peptide synthesis service page.

FAQ

When should I choose peptidomimetics instead of a standard peptide?

Choose peptidomimetics when you need improved stability, protease resistance, or a scaffold that better reproduces the bioactive conformation.

What information is needed to order custom MHC peptide tetramers?

Provide the epitope sequence, MHC allele/class, desired fluorophore/label, quantity, and any special QC or documentation requirements.

What’s the difference between combinatorial peptide synthesis and peptide libraries?

Combinatorial peptide synthesis is the manufacturing approach used to generate peptide libraries. Library design determines how variants are distributed and screened.

Can you create focused libraries around a lead peptide?

Yes. Share your lead sequence and the positions you want to vary, plus the amino acid set or motif constraints.

What QC is typical for tetramers or libraries?

Deliverables are aligned to the platform and downstream needs. Additional characterization and reporting can be added for complex products.

Can these platforms include labels or functional handles?

Yes. Labels and handles can be incorporated when planned into the design and compatible with the screening or immunology workflow.

CONTACT US

Speak to a Discovery Platform Scientist

Share your peptide sequence(s), labeling/handle type (isotope, cleavable linker, click chemistry), target purity/scale, and intended application. We’ll recommend practical specifications, platform strategy, and an appropriate synthesis/QC plan aligned to your screening, discovery, or immunology workflow. We’ll recommend practical specifications, platform strategy, and an appropriate synthesis/QC plan aligned to your screening, discovery, or immunology workflow.

Tip: If the peptide is hydrophobic/long/cysteine-rich, include that context so we can route the request to the right synthesis strategy.

Why Choose Bio-Synthesis

Trusted by biotech leaders worldwide for over 40+ years of delivering high quality, fast and scalable synthetic biology solutions.